Home / 778,419.81-1,167,678.97-329,081.52

Finding the Fourth Proportional to 778,419.81, 1,167,678.97 and 329,081.52

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Solution

The fourth proportional to 778,419.81, 1,167,678.97 and 329,081.52 is: 493,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,419.81 : 1,167,678.97 = 329,081.52 : x
  2. Step 2: Convert to fraction form
    778,419.81/1,167,678.97 = 329,081.52/x
  3. Step 3: Cross multiply
    778,419.81x = 1,167,678.97 × 329,081.52
  4. Step 4: Simplify right side
    778,419.81x = 384,261,570,319.63
  5. Step 5: Solve for x
    x = 384,261,570,319.63/778,419.81
  6. Step 6: Final answer
    x = 493,643.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.